To provide the most suitable or compatible scheme to work against various attack toward vehicular ad hoc networks (VANETs) is very challenging. Not only that the high authentication and communication overhead also became a problem for VANETs. Thus, in this paper we use multifactor authentication that could resist various attack toward VANETs. A biometric blockchain-based multifactor privacy-preserving authentication scheme for VANETs. This scheme is proposed by using a new robust pseudo-identity multifactor VANET scheme based on Physical Unclonable Functions (PUF) and biometric data of the vehicle’s authorized user. To calculate the computational cost and the authentication overhead, we compare three of our computational cost and authentication overhead below. From the complexity analysis this proposed scheme has a lower authentication overhead and offers better security level and a low computational cost can be achieved. From the perspective of future, we hope that the cost that involve in this scheme still can be reduce as we offer a high security level. Not only that, but we also hope that this scheme can be implemented practically.